﻿<p>The <em>IfcProductDefinitionShape</em> defines all shape relevant information about an <em>IfcProduct</em>. It allows for multiple geometric shape representations of the same product. The shape relevant information includes:</p>
<ul>
<li>the shape representation including geometric representation items (for 3D solids, 2D annotations, etc.) and:
<ul>
<li>associated presentation information (line color, line type, surface rendering properties)</li>
<li>assignment to presentation layers (CAD layers for visibility control)</li>
</ul>
</li>
<li>or the topological representation items for connectivity systems (vertex, edge, face representations) that may include geometric representation items (vertex points, edge curves, face surfaces)</li>
</ul>

<blockquote class="note">
NOTE&nbsp; The definition of this entity relates to the ISO 10303 entity product_definition_shape. Please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.
</blockquote>

<blockquote class="history">HISTORY&nbsp; New entity in IFC1.5</blockquote>